Is it possible to modify this project for 8 channel relay ?

[amyth1884]

I tried modding the html, js script to support 8 devices but after making all the changes the error I get is [WARN] Failed to parse config file

I manually added 8 devices to the config file, also if I try to save from the settings window i get parsing error, json parsing seems to be an issue, also my relay turns on when I press off button, can you help me with a 8 channel relay support for the same project, possibly include IR support as well